What is LBNW raised loft storage?

What is LBNW raised loft storage?

10:59 16 March in

LBNW Timber Supported Sub-Frame is ideal for older houses with weaker ceilings.


We come across a lot of weaker ceilings or ceilings with smaller joists than normal, and we advise not to just board directly onto the joists or batten and board directly to the joists because the ceiling joists are too weak to allow the additional boarding & storage weight (load).


Mainly older terraced and detached houses pre-WW2 and after WW2 when we started building again, we had a short supply of materials so houses were built to a very minimal specification. Although your ceiling joists are adequate (in most cases) to support your ceiling only, they were never designed to take any extra weight on them so they must be strengthened or built above correctly to allow boarding, storage items and you to walk about safely and by adding more support this will prevent problems in the future.

lbnw timber

Insufficient strengthening or supporting of a storage floor will cause problems with weaker ceilings and, unfortunately, a lot of “loft companies” out there are not aware of how to create strong, safe storage sub-frames (storage platforms) in a loft. Installing directly or on some 3×2 batten only increases the load on the existing ceiling and will not strengthen it. Add your storage items, you and someone else and without the correct extra support and your ceiling could essentially be dangerously overloaded.


There is more to it than you think, see the pictures below? This shows the extra work that goes into creating a level self-supporting storage platform. The sub-frame is hung in places where it cannot bear down on your existing joists for support, usually above the central area of a bedroom, near the light where there is no additional support. Hangers must be fitted to the purlins to help support and suspend the sub-frame in most cases as this is required before any boarding can be installed.


Cutting corners to falsely reduce quotes for loft boarding is commonplace in this industry, so this means using inadequate materials and will not conform to any regulations. We will not cut corners to reduce costs as others do.